don't do it!! i did it to my truck and now i am going to make it exit BEHIND the rear tire. i thought that it would be ok, w/ the a 5" tip and that the black smoke wouldn't get the rims that dirty. WRONG. take my advice, don't do it, you'll be kicking yourself when ur cleaning the rim or when u look at ur pretty clean truck and see that soot covered rim sticking out.